Today the National Transportation Safety Board (NTSB) published two advanced notices of proposed rulemaking (ANPRM) in the Federal Register (88 FR 60164-60165 and 88 FR 60166-60167) for “Authority of NTSB in Railroad, Pipeline, and Hazardous Materials Investigations”. The two rulemakings would provide definitions for key terms used in existing NTSB regu…
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